upstream/ipython Files · IPython/testing/skipdoctest.py

Backport PR : Fix for incorrect default encoding on Windows....

Backport PR : Fix for incorrect default encoding on Windows. Whilst trying out rendering notebooks in a flask app under Apache on Windows I got the below error when simply trying to import `SlidesExporter` ```python mod_wsgi (pid=6260): Exception occurred processing WSGI script 'flask_test.wsgi'. Traceback (most recent call last): File "flask_test.py", line 81, in render_notebook from IPython.nbconvert.exporters import SlidesExporter File "c:\\dev\\code\\ipython\\IPython\\__init__.py", line 47, in <module> from .terminal.embed import embed File "c:\\dev\\code\\ipython\\IPython\\terminal\\embed.py", line 32, in <module> from IPython.terminal.interactiveshell import TerminalInteractiveShell File "c:\\dev\\code\\ipython\\IPython\\terminal\\interactiveshell.py", line 25, in <module> from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC File "c:\\dev\\code\\ipython\\IPython\\core\\interactiveshell.py", line 59, in <module> from IPython.core.prompts import PromptManager File "c:\\dev\\code\\ipython\\IPython\\core\\prompts.py", line 138, in <module> HOME = py3compat.str_to_unicode(os.environ.get("HOME","//////:::::ZZZZZ,,,~~~")) File "c:\\dev\\code\\ipython\\IPython\\utils\\py3compat.py", line 18, in decode return s.decode(encoding, "replace") LookupError: unknown encoding: cp0 ``` A little bit of [googling](http://bugs.python.org/issue6501) suggests that Windows returns 'cp0' to indicate there is no code page. This fix simply looks for this invalid value and replaces it with something valid. With this change it works for me.

Fernando Perez - - Load All Authors

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      """Decorators marks that a doctest should be skipped, for both python 2 and 3.

      The IPython.testing.decorators module triggers various extra imports, including

      numpy and sympy if they're present. Since this decorator is used in core parts

      of IPython, it's in a separate module so that running IPython doesn't trigger

      those imports."""

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2009-2011  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      import sys

      #-----------------------------------------------------------------------------

      # Decorators

      #-----------------------------------------------------------------------------

      def skip_doctest(f):

          """Decorator - mark a function or method for skipping its doctest.

          This decorator allows you to mark a function whose docstring you wish to

          omit from testing, while preserving the docstring for introspection, help,

          etc."""

          f.skip_doctest = True

          return f

      def skip_doctest_py3(f):

          """Decorator - skip the doctest under Python 3."""

          f.skip_doctest = (sys.version_info[0] >= 3)

          return f

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				"""Decorators marks that a doctest should be skipped, for both python 2 and 3.

				The IPython.testing.decorators module triggers various extra imports, including
				numpy and sympy if they're present. Since this decorator is used in core parts
				of IPython, it's in a separate module so that running IPython doesn't trigger
				those imports."""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2009-2011 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				import sys

				#-----------------------------------------------------------------------------
				# Decorators
				#-----------------------------------------------------------------------------

				def skip_doctest(f):
				"""Decorator - mark a function or method for skipping its doctest.

				This decorator allows you to mark a function whose docstring you wish to
				omit from testing, while preserving the docstring for introspection, help,
				etc."""
				f.skip_doctest = True
				return f


				def skip_doctest_py3(f):
				"""Decorator - skip the doctest under Python 3."""
				f.skip_doctest = (sys.version_info[0] >= 3)
				return f